Strange new warning ...

I updated BleachBit to 5.0.0 a couple weeks ago and all seemed fine. Then, about a week ago, I started seeing the following error message every time I open BleachBit. There doesn't seem to be any impact from the error message, but it is a bit troubling. Any idea what's going on here?

***** Error Message *****
The update information does not parse:
415 Unsupported Media Type

415 Unsupported Media Type
openresty/1.27.1.1
(function(){function c(){var b=a.contentDocument||a.contentWindow.document;if(b){var d=b.createElement('script');d.innerHTML="window.__CF$cv$params={r:'943e7929eee0d30e',t:'MTc0NzkzOTU1NC4wMDAwMDA='};var a=document.createElement('script');a.nonce='';a.src='/cdn-cgi/challenge-platform/scripts/jsd/main.js';document.getElementsByTagName('head')[0].appendChild(a);";b.getElementsByTagName('head')[0].appendChild(d)}}if(document.body){var a=document.createElement('iframe');a.height=1;a.width=1;a.style.position='absolute';a.style.top=0;a.style.left=0;a.style.border='none';a.style.visibility='hidden';document.body.appendChild(a);if('loading'!==document.readyState)c();else if(window.addEventListener)document.addEventListener('DOMContentLoaded',c);else{var e=document.onreadystatechange||function(){};document.onreadystatechange=function(b){e(b);'loading'!==document.readyState&&(document.onreadystatechange=e,c())}}}})();

Traceback (most recent call last):
File "bleachbit\Update.pyc", line 114, in check_updates
File "xml\dom\minidom.pyc", line 2000, in parseString
File "xml\dom\expatbuilder.pyc", line 925, in parseString
File "xml\dom\expatbuilder.pyc", line 223, in parseString
xml.parsers.expat.ExpatError: not well-formed (invalid token): line 6, column 885
***** End of Error Message *****